Aerosol generation device providing customized smoking experience and aerosol-generating article applied thereto

ABSTRACT

An aerosol generation device providing a customized smoking experience and an aerosol-generating article applied thereto are provided. The aerosol generation device according to some embodiments of the present disclosure may include a housing which forms an accommodation space for accommodating an aerosol-generating article, and a heater part configured to heat the aerosol-generating article accommodated in the accommodation space to generate an aerosol. Here, the aerosol-generating article may include an aerosol-forming substrate part and an additive accommodation part in which an additive is accommodated, and the heater part may include a user control-type heater configured to heat the additive accommodation part. The user control-type heater may heat the additive accommodation part on the basis of a user input to provide a customized smoking experience according to a user&#39;s preferences.

TECHNICAL FIELD

The present disclosure relates to an aerosol generation device providinga customized smoking experience and an aerosol-generating articleapplied thereto, and more particularly, to an aerosol generation devicecapable of providing a customized smoking experience according to userpreferences through various control functions such as flavor control andvapor production control, and an aerosol-generating article designed tobe applied to the device.

BACKGROUND ART

In recent years, demand for alternative articles that overcome thedisadvantages of traditional cigarettes has increased. For example,demand for devices that electrically heat a cigarette to generate anaerosol and heating-type cigarettes applied to such devices hasincreased, and accordingly, active research has been carried out onheating-type aerosol generation devices and heating-type cigarettes.

Recently, as user preferences have diversified, active research has alsobeen carried out to provide customized smoking experiences. Crush-typeflavor capsules added to a filter are one of the product of suchresearch. The crush-type flavor capsules contain a flavoring liquidtherein and may provide general flavors or enhanced flavors to usersaccording to whether the capsules are crushed.

However, the flavor capsules have a disadvantage that the flavoringliquid is rapidly expressed upon crushing and flavor expressionprogressively decreases towards the end of smoking, and there is also adisadvantage that it is difficult to precisely control a flavorintensity.

DISCLOSURE Technical Problem

Some embodiments of the present disclosure are directed to providing anaerosol generation device capable of providing a customized smokingexperience according to user preferences.

Some embodiments of the present disclosure are also directed toproviding an aerosol-generating article applied to the aerosolgeneration device to provide a customized smoking experience.

Some embodiments of the present disclosure are also directed toproviding an aerosol generation device capable of providing a precisecontrol function according to user preferences and an aerosol-generatingarticle applied thereto.

Objectives of the present disclosure are not limited to theabove-mentioned objectives, and other unmentioned objectives should beclearly understood by those of ordinary skill in the art to which thepresent disclosure pertains from the description below.

Technical Solution

Some embodiments of the present disclosure provide an aerosol generationdevice including a housing which forms an accommodation space foraccommodating an aerosol-generating article, and a heater partconfigured to heat the aerosol-generating article accommodated in theaccommodation space to generate an aerosol, wherein theaerosol-generating article includes an aerosol-forming substrate partand an additive accommodation part in which an additive is accommodated,and the heater part includes a heater configured to heat theaerosol-forming substrate part and a user control-type heater configuredto heat the additive accommodation part while being controlled on thebasis of a user input.

In some embodiments, the user input may be received through a buttonformed on an outer surface of the housing.

In some embodiments, the additive may be a flavoring agent.

In some embodiments, the flavoring agent may be a flavoring sheetproduced in the form of a sheet.

In some embodiments, the additive may be a moisturizer.

In some embodiments, the additive accommodation part may include a firstaccommodation part and a second accommodation part, and the usercontrol-type heater may include a first heater configured to heat thefirst accommodation part and a second heater configured to heat thesecond accommodation part.

In some embodiments, a heating strength of the user control-type heatermay be controlled on the basis of the user input.

In some embodiments, the user control-type heater may be an externalheating type, the additive may be a flavoring agent, and the flavoringagent may also be added to a wrapper of the additive accommodation part.

In some embodiments, the user control-type heater may be an externalheating type, the additive may be a flavoring agent, and the flavoringagent may also be added to a wrapper of a segment adjacent to theadditive accommodation part.

Advantageous Effects

According to some embodiments of the present disclosure, anaerosol-generating article including an additive accommodation part andan aerosol generation device including a user control-type heater can beprovided. The user control-type heater may heat the additiveaccommodation part on the basis of a user input to provide a customizedsmoking experience to the user. For example, when the additive is aflavoring agent, a customized smoking experience can be provided throughflavor control, and when the additive is a moisturizer, a customizedsmoking experience can be provided through vapor production control.

Also, a heating strength of the user control-type heater can becontrolled on the basis of a user input. In this case, a more precisecontrol function can be provided. For example, when the additive is aflavoring agent, a more precise flavor control function can be provided.

In addition, a flavoring sheet produced in the form of a sheet may beused as the flavoring agent. The flavoring sheet may, when heated,slowly release a flavoring fixed therein to ensure better flavorpersistence than flavor capsules.

The advantageous effects according to the technical spirit of thepresent disclosure are not limited to those mentioned above, and otherunmentioned advantageous effects should be clearly understood by thoseof ordinary skill in the art from the description below.

DESCRIPTION OF DRAWINGS

FIGS. 1 to 3 are exemplary views schematically illustrating aerosolgeneration devices according to various embodiments of the presentdisclosure.

FIGS. 4 and 5 are exemplary views illustrating a detailed structure ofan aerosol-generating article and an operation principle of a heaterpart according to a first embodiment of the present disclosure.

FIG. 6 is an exemplary view illustrating a detailed structure of anaerosol-generating article and an operation principle of a heater partaccording to a second embodiment of the present disclosure.

FIG. 7 is an exemplary view illustrating a detailed structure of anaerosol-generating article and an operation principle of a heater partaccording to a third embodiment of the present disclosure.

FIG. 8 is an exemplary view illustrating a detailed structure of anaerosol-generating article and an operation principle of a heater partaccording to a fourth embodiment of the present disclosure.

FIG. 9 is an exemplary view illustrating various ways of adding aflavoring sheet according to some embodiments of the present disclosure.

FIGS. 10 and 11 are exemplary views illustrating various processed formsof the flavoring sheet according to some embodiments of the presentdisclosure.

MODES OF THE INVENTION

Hereinafter, exemplary embodiments of the present disclosure will bedescribed in detail with reference to the accompanying drawings.Advantages and features of the present disclosure and methods ofachieving the same should become clear from embodiments described indetail below with reference to the accompanying drawings. However, thetechnical spirit of the present disclosure is not limited to thefollowing embodiments and may be implemented in various different forms.The following embodiments only make the technical spirit of the presentdisclosure complete and are provided to completely inform those ofordinary skill in the art to which the present disclosure pertains ofthe scope of the disclosure. The technical spirit of the presentdisclosure is defined only by the scope of the claims.

In assigning reference numerals to components of each drawing, it shouldbe noted that the same reference numerals are assigned to the samecomponents where possible even when the components are illustrated indifferent drawings. Also, in describing the present disclosure, whendetailed description of a known related configuration or function isdeemed as having the possibility of obscuring the gist of the presentdisclosure, the detailed description thereof will be omitted.

Unless otherwise defined, all terms including technical or scientificterms used in this specification have the same meaning as commonlyunderstood by those of ordinary skill in the art to which the presentdisclosure pertains. Terms defined in commonly used dictionaries shouldnot be construed in an idealized or overly formal sense unless expresslyso defined herein. Terms used in this specification are for describingthe embodiments and are not intended to limit the present disclosure. Inthis specification, a singular expression includes a plural expressionunless the context clearly indicates otherwise.

Also, in describing components of the present disclosure, terms such asfirst, second, A, B, (a), and (b) may be used. Such terms are only usedfor distinguishing one component from another component, and theessence, order, sequence, or the like of the corresponding component isnot limited by the terms. In a case in which a certain component isdescribed as being “connected,” “coupled,” or “linked” to anothercomponent, it should be understood that, although the component may bedirectly connected or linked to the other component, still anothercomponent may also be “connected,” “coupled,” or “linked” between thetwo components.

The terms “comprises” and/or “comprising” used herein do not precludethe possibility of presence or addition of one or more components,steps, operations, and/or devices other than those mentioned.

First, some terms used in various embodiments of the present disclosurewill be clarified.

In the following embodiments, the term “aerosol-forming substrate” mayrefer to a material that is able to form an aerosol. The aerosol mayinclude a volatile compound. The aerosol-forming substrate may be asolid or liquid.

For example, solid aerosol-forming substrates may include solidmaterials based on tobacco raw materials such as reconstituted tobaccoleaves, shredded tobacco, and reconstituted tobacco, and liquidaerosol-forming substrates may include liquid compositions based onnicotine, tobacco extracts, and/or various flavoring agents. However,the scope of the present disclosure is not limited to the above-listedexamples.

In the following embodiments, the term “aerosol generation device” mayrefer to a device that generates an aerosol using an aerosol-formingsubstrate in order to generate an aerosol that can be inhaled directlyinto the user's lungs through the user's mouth. Some examples of theaerosol generation device will be described below with reference toFIGS. 1 to 3 .

In the following embodiments, the term “aerosol-generating article” mayrefer to an article that is able to generate an aerosol. Theaerosol-generating article may include an aerosol-forming substrate. Atypical example of the aerosol-generating article may include acigarette, but the scope of the present disclosure is not limitedthereto.

In the following embodiments, the terms “upstream” and “upstreamdirection” may refer to a direction moving away from an oral region of auser, and “downstream” or “downstream direction” may refer to adirection approaching the oral region of the user. The terms “upstream”and “downstream” may be used to describe relative positions of elementsconstituting an aerosol-generating article. For example, in anaerosol-generating article 150-1 illustrated in FIG. 4 , a filter part152 is disposed downstream of or in a downstream direction from anaerosol-forming substrate part 151, and the aerosol-forming substratepart 151 is disposed upstream of or in an upstream direction from thefilter part 152.

In the following embodiments, the term “longitudinal direction” mayrefer to a direction corresponding to a longitudinal axis of anaerosol-generating article.

In the following embodiments, the term “puff” refers to inhalation by auser, and the inhalation may be a situation in which a user draws smokeinto his or her oral cavity, nasal cavity, or lungs through the mouth ornose.

In the following embodiments, the term “sheet” may refer to a thin layercomponent whose width and length are substantially larger than athickness thereof. The term “sheet” may be interchangeably used with theterm “web” or “film” in the art.

In the following embodiments, the terms “flavor sheet” and “flavoringsheet” may refer to a material that contains a flavoring agent or aflavoring and is produced in the form of a sheet.

Hereinafter, various embodiments of the present disclosure will bedescribed in detail with reference to the accompanying drawings.

First, aerosol generation devices 100-1 to 100-3 according to variousembodiments of the present disclosure will be described with referenceto FIGS. 1 to 3 .

FIG. 1 is an exemplary view schematically illustrating the aerosolgeneration device 100-1 according to some embodiments of the presentdisclosure. In particular, FIG. 1 illustrates a state in which anaerosol-generating article 150 is accommodated in the device 100-1 as anexample.

As illustrated in FIG. 1 , the aerosol generation device 100-1 mayinclude a housing, a heater part 140, a battery 130, and a controller120. However, this is only an exemplary embodiment for achieving theobjectives of the present disclosure, and, of course, some componentsmay be added or omitted as necessary. Also, the components of theaerosol generation device 100-1 illustrated in FIG. 1 representfunctional components that are functionally distinct, and the pluralityof components may be implemented in a form of being integrated with eachother in an actual physical environment, or a single component may beimplemented in a form of being divided into a plurality of specificfunctional components. Hereinafter, each component of the aerosolgeneration device 100-1 will be described.

The housing may form an exterior of the aerosol generation device 100-1.Also, the housing may form an accommodation space in which theaerosol-generating article 150 is accommodated. The housing may be madeof a sturdy material to protect components therein.

In some embodiments, a user interface module may be formed on an outersurface of the housing. Also, the aerosol generation device 100-1 maycontrol the heater part 140 on the basis of a user input receivedthrough the user interface module to provide a customized smokingexperience. For example, the user interface module may be implemented invarious forms such as a button or a touchable display. The presentembodiment will be described in more detail below with reference to FIG.4 and so on.

Next, the heater part 140 may be disposed to heat the aerosol-generatingarticle 150 accommodated in the accommodation space. Theaerosol-generating article 150 may include a solid aerosol-formingsubstrate and may generate an aerosol when heated. The generated aerosolmay be inhaled through an oral region of a user. The operation, heatingtemperature, or the like of the heater part 140 may be controlled by thecontroller 120.

In some embodiments, the heater part 140 may include a user control-typeheater (hereinafter referred to as “control-type heater”) that can becontrolled on the basis of a user input. For example, the heater part140 may include a basic heater, which heats the aerosol-generatingarticle 150 according to a pre-stored temperature profile, and thecontrol-type heater. The user may directly control the control-typeheater to receive a customized smoking experience. The presentembodiment will be described in more detail below with reference to FIG.4 and so on.

Next, the battery 130 may supply power used to operate the aerosolgeneration device 100-1. For example, the battery 130 may supply powerto allow the heater part 140 to heat the aerosol-forming substrateincluded in the aerosol-generating article 150 and may supply powerrequired for the operation of the controller 120.

Also, the battery 130 may supply power required to operate electricalcomponents such as a display (not illustrated), a sensor (notillustrated), and a motor (not illustrated) which are installed in theaerosol generation device 100-1.

Next, the controller 120 may control the overall operation of theaerosol generation device 100-1. For example, the controller 120 maycontrol the operation of the heater part 140 and the battery 130 and mayalso control the operation of other components included in the aerosolgeneration device 100-1. The controller 120 may control the powersupplied by the battery 130, a heating temperature of the heater part140, and the like. Also, the controller 120 may check a state of each ofthe components of the aerosol generation device 100-1 and determinewhether the aerosol generation device 100-1 is in an operable state.

The controller 120 may be implemented with at least one processor. Theprocessor may also be implemented with an array of a plurality of logicgates or implemented with a combination of a general-purposemicroprocessor and a memory which stores a program that may be executedby the microprocessor. Also, those of ordinary skill in the art to whichthe present disclosure pertains should understand that the controller120 may also be implemented with other forms of hardware.

Meanwhile, in various embodiments of the present disclosure, acustomized smoking experience can be provided through an additiveaccommodation part of the aerosol-generating article 150 and thecontrol-type heater configured to heat the additive accommodation part.Here, an additive accommodated in the additive accommodation part is amaterial that can change a smoking experience and whose degree ofexpression may be changed by heating. For example, the additive may be aflavoring agent, a moisturizer, a sound-generating agent, or the likebut is not limited thereto. The present embodiment will be described inmore detail below with reference to FIG. 4 and so on.

Hereinafter, other types of aerosol generation devices 100-2 and 100-3will be briefly described with reference to FIGS. 2 and 3 .

FIG. 2 illustrates an aerosol generation device 100-2 in which avaporizer 1 and the aerosol-generating article 150 are disposed inparallel, and FIG. 3 illustrates an aerosol generation device 100-3 inwhich the vaporizer 1 and the aerosol-generating article 150 aredisposed in series. However, internal structures of the aerosolgeneration devices are not limited to those illustrated in FIGS. 2 and 3, and the arrangement of the components may be changed according to adesign method.

In FIGS. 2 and 3 , the vaporizer 1 may include a liquid reservoirconfigured to store a liquid aerosol-forming substrate, a wickconfigured to absorb the aerosol-forming substrate, and a vaporizingelement configured to vaporize the absorbed aerosol-forming substrate togenerate an aerosol. The vaporizing element may be implemented invarious forms such as a heating element and a vibration element. Also,in some embodiments, the vaporizer 1 may be designed to have a structurethat does not include a wick.

The aerosol generated in the vaporizer 1 may be inhaled through an oralregion of a user after passing through the aerosol-generating article150. The vaporizing element of the vaporizer 1 may also be controlled bythe controller 120.

The aerosol generation devices 100-1 to 100-3 according to variousembodiments of the present disclosure have been schematically describedabove with reference to FIGS. 1 to 3 . Hereinafter, the operationprinciple of the aerosol-generating article 150 and the heater part 140that can provide a customized smoking experience will be described indetail with reference to FIG. 4 and so on.

First, the aerosol-generating article 150-1 and the heater part 140according to a first embodiment of the present disclosure will bedescribed with reference to FIGS. 4 and 5 .

FIGS. 4 and 5 are exemplary views illustrating a detailed structure ofthe aerosol-generating article 150-1 and an operation principle of theheater part 140 according to the first embodiment of the presentdisclosure.

As illustrated in FIGS. 4 and 5 , the aerosol-generating article 150-1according to the present embodiment may include the aerosol-formingsubstrate part 151, the filter part 152, and an additive accommodationpart 153. Only the components relating to the embodiment of the presentdisclosure are illustrated in FIGS. 4 and 5 , and those of ordinaryskill in the art to which the present disclosure pertains shouldunderstand that the aerosol-generating article 150-1 may further includegeneral-purpose components other than the components illustrated inFIGS. 4 and 5 . Also, FIGS. 4 and 5 only illustrate some examples ofaerosol-generating articles according to various embodiments of thepresent disclosure, and a detailed structure of the aerosol-generatingarticle may be changed from that illustrated. Hereinafter, eachcomponent of the aerosol-generating article 150-1 will be described.

The aerosol-forming substrate part 151 may be disposed upstream of thefilter part 152 and perform a function of forming an aerosol A.Specifically, the aerosol-forming substrate part 151 may include anaerosol-forming substrate and may form an aerosol using theaerosol-forming substrate. The aerosol-forming substrate part 151 mayform an aerosol when heated by the heater part 140. The formed aerosolmay be delivered to an oral region of a user via the filter part 152according to a puff. The aerosol-forming substrate part 151 may furtherinclude a wrapper that wraps around the aerosol-forming substrate.

Since the aerosol-forming substrate part 151 is produced in the form ofa rod, the aerosol-forming substrate part 151 may be referred to as an“aerosol-forming rod 151” or a “tobacco rod 151” in some cases.Alternatively, the aerosol-forming substrate part 151 may also bereferred to as a “medium part 151” in some cases.

In some embodiments, the aerosol-forming substrate part 151 may furtherinclude a flavoring sheet. For example, cut pieces of the flavoringsheet and shredded tobacco (e.g., shredded tobacco leaves, shreddedreconstituted tobacco leaves) may be mixed and included in theaerosol-forming substrate part 151. In this case, since a flavoringfixed inside the flavoring sheet is slowly released as theaerosol-forming substrate part 151 is heated, flavor persistence of theaerosol-generating article 150-1 can be significantly improved. Theflavoring sheet will be described in more detail below.

Next, the filter part 152 may be disposed downstream of theaerosol-forming substrate part 151 and perform a function of filteringan aerosol. To this end, the filter part 152 may include a filtermaterial. Examples of the filter material may include a celluloseacetate fiber, paper, or the like, but the filter material is notlimited thereto. Also, the filter part 152 may be disposed at adownstream end portion of the aerosol-generating article 150-1 and alsoserve as a mouthpiece that comes into contact with an oral region of auser. The filter part 152 may further include a wrapper that wrapsaround the filter material (plug).

Since the filter part 152 is also produced in the form of a rod, thefilter part 152 may be referred to as a “filter rod 152” in some casesand may be produced in various shapes such as a cylindrical shape, atubular shape including a hollow therein (e.g., a cellulose acetatefilter having a tubular shape), and a recessed shape. Alternatively,since the filter part 152 serves as a mouthpiece, the filter part 152may also be referred to as a “mouthpiece part 152.”

Next, the additive accommodation part 153 may accommodate apredetermined additive. Here, the additive may be a material of any formthat can change a smoking experience of a user and whose degree ofexpression is controlled by heating. For example, the additive may be aflavoring agent that can change a gustatory or olfactory experienceelement, a moisturizer (wetting agent) that can change a visualexperience element, or a sound-generating agent that can change an auralexperience element but is not limited thereto. The additiveaccommodation part 153 may further include a wrapper.

For example, the moisturizer may include at least one of glycerin,propylene glycol, ethylene glycol, dipropylene glycol, diethyleneglycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol butis not limited thereto. The moisturizer may maintain moisture at anoptimum level and thus soften the inherent flavor and produce a largeamount of vapor.

For example, the flavoring agent may include licorice, saccharose,fructose syrup, isosweet, cocoa, lavender, cinnamon, cardamom, celery,fenugreek, cascarilla, white sandalwood, bergamot, geranium, honeyessence, rose oil, vanilla, lemon oil, orange oil, mint oil, caraway,cognac, jasmine, chamomile, menthol, cinnamon, ylang-ylang, sage,spearmint, ginger, cilantro, a clove extract (or a clove material),coffee, or the like but is not limited thereto.

In some embodiments, the flavoring sheet may be used as a flavoringagent. The flavoring sheet may be processed in various forms such as acut form or a rolled or folded form and added to the additiveaccommodation part 153. By slowly releasing a flavoring fixed thereinwhen heated, the flavoring sheet can significantly improve flavorpersistence. The flavoring sheet will be described in more detail below.

The sound-generating agent may be a material that generates sound whenheated. For example, the sound-generating agent may include a flavoringsheet produced to be porous. The flavoring sheet may generate sound asinner pores (or films forming the pores) rupture when heated. The porousflavoring sheet may be produced from a sheet composition that includes asolvent such as distilled water and/or ethanol, a hydrocolloid material,and an oil-type flavoring. The flavoring sheet produced from the sheetcomposition may serve as a sound-generating element in theaerosol-generating article 150-1 due to having porosity. For example, aplurality of pores may be formed in the composition as a hydrophilichydrocolloid material and a lipophilic flavoring are mixed with asolvent, and a porous flavoring sheet may be produced as the sheetcomposition is dried. Additional description of the flavoring sheet willbe given below.

As illustrated, the additive accommodation part 153 may be disposeddownstream of the aerosol-forming substrate part 151. In this case,since a high-temperature aerosol formed in the aerosol-forming substratepart 151 passes through the additive accommodation part 153, theaccommodated additive can be easily expressed (transferred). However,the scope of the present disclosure is not limited thereto, and theadditive accommodation part 153 may also be disposed upstream of theaerosol-forming substrate part 151. For example, in a case in which theadditive accommodation part 153 includes a moisturizer, the additiveaccommodation part 153 may be disposed upstream of the aerosol-formingsubstrate part 151.

Next, the heater part 140 may include a basic heater 141 configured toheat the aerosol-forming substrate part 151 and a control-type heater142 configured to heat the additive accommodation part 153. The basicheater 141 may heat the aerosol-forming substrate part 151 to provide abasic (general) smoking experience, and the control-type heater 142 maybe controlled on the basis of a user input to provide a customizedsmoking experience.

As mentioned above, the basic heater 141 may heat the aerosol-formingsubstrate part 151 on the basis of a pre-stored temperature profile. Inother words, the basic heater 141 may be a heater that is controlled bythe controller 120 on the basis of a pre-stored temperature profile.

The basic heater 141 may be implemented in various forms. For example,the basic heater 141 may be implemented as an internal heating type asillustrated in FIG. 4 or implemented as an external heating type asillustrated in FIG. 5 . Also, the basic heater 141 may be implemented asan electrically resistive heater or implemented by an induction heatingmethod.

Next, the control-type heater 142 may heat the additive accommodationpart 153 to provide a customized smoking experience. For example, asillustrated, the control-type heater 142 may be implemented as anexternal heating type and heat at least a portion of the additiveaccommodation part 153 from the outside. Also, the control-type heater142 may control a degree of heating of the additive accommodation part153 (that is, control a degree of expression of the accommodatedadditive) on the basis of a user input to provide a customized smokingexperience. However, a specific control method may vary according toembodiments.

In some embodiments, operation of the control-type heater 142 may becontrolled on the basis of a user input. For example, the control-typeheater 142 may be turned on or off according to a user input. In thiscase, the user may control the on or off of the control-type heater 142to receive a customized smoking experience.

Also, in some embodiments, a heating strength of the control-type heater142 may be controlled on the basis of a user input. For example, thecontrol-type heater 142 may operate with a first heating strength inresponse to a first user input or may operate with a second heatingstrength in response to a second user input. Here, the first user inputand the second user input may be the same type of user input (e.g., abutton push). According to the present embodiment, since a degree ofexpression of an additive (e.g., a flavor intensity or a vaporproduction level) can be more precisely controlled, a user's smokingexperience can be customized.

Also, in some embodiments, a heating mode of the control-type heater 142may be controlled on the basis of a user input. For example, thecontrol-type heater 142 may operate in a manual mode according to afirst user input or may operate in an automatic mode according to asecond user input. Here, the first user input and the second user inputmay be the same type of user input (e.g., a button push). In the manualmode, the operation and heating strength of the control-type heater 142may be controlled according to a user input. Also, in the automaticmode, the control-type heater 142 may operate regardless of a userinput. For instance, the controller 120 may automatically control thecontrol-type heater 142 on the basis of a user's puff pattern. As a morespecific example, the controller 120 may turn on the control-type heater142 or increase the heating strength thereof in a case in which a puffintensity is increased, a puff interval is shortened, or a puff lengthis increased. In the opposite case, the controller 120 may turn off thecontrol-type heater 142 or decrease the heating strength thereof. Also,in the automatic mode, the controller 120 may operate the control-typeheater 142 according to a pre-stored temperature profile.

Meanwhile, the control-type heater 142 may be controlled on the basis ofa user input received through a user interface module. For example, thecontroller 120 may control the control-type heater 142 on the basis of auser input received through the user interface module, but the presentdisclosure is not limited thereto.

The user interface module may be implemented in various forms such as abutton, a touchable display, or a voice recognition module. For example,the user interface module may be implemented as a button formed on anouter surface of a housing of an aerosol generation device (e.g.,100-1). In this case, since the user can control the control-type heater142 through a simple input made by pushing the button, user conveniencecan be improved.

Meanwhile, in some embodiments, the control-type heater 142 may beimplemented as an external heating type, and a flavoring agent may beadded to the additive accommodation part 153. Also, a flavoring agent(e.g., a flavoring sheet) may also be added to a wrapper of the additiveaccommodation part 153 or a wrapper of a segment adjacent thereto (e.g.,the aerosol-forming substrate part 151, the filter part 152, or a filterpart 154, 155, or 158 of FIG. 7 or 8 ). In this case, since theflavoring agent in a wrapper that is located close to the control-typeheater 142 is rapidly transferred as the control-type heater 142 isoperated, a delay in flavor transfer can be minimized. In general, evenwhen the control-type heater 142 is operated (turned on) by the user,some amount of time may be taken for a flavor to be transferred. This isbecause some amount of time is necessary for the additive accommodationpart 153 to be sufficiently heated. In other words, flavor transfer maybe delayed until the additive accommodation part 153 is sufficientlyheated by the control-type heater 142. However, according to the presentembodiment, such a problem can be easily addressed.

The detailed structure of the aerosol-generating article 150-1 and theoperation principle of the heater part 140 according to the firstembodiment of the present disclosure have been described above withreference to FIGS. 4 and 5 . According to the above description, thecontrol-type heater 142 which is a dedicated heater for the additiveaccommodation part 153 and is controlled by a user may be provided. Thecontrol-type heater 142 may heat the additive accommodation part 153 onthe basis of a user input to provide a customized smoking experienceaccording to the user's preferences.

Hereinafter, a detailed structure of an aerosol-generating article 150-2and an operation principle of the heater part 140 according to a secondembodiment of the present disclosure will be described. However, forclarity of the present disclosure, description of content overlappingwith the previous embodiment will be omitted.

FIG. 6 is an exemplary view illustrating the detailed structure of theaerosol-generating article 150-2 and the operation principle of theheater part 140 according to the second embodiment of the presentdisclosure. For reference, illustration of the basic heater 141 has beenomitted in FIG. 6 and so on for convenience of understanding.

As illustrated in FIG. 6 , the aerosol-generating article 150-2according to the present embodiment may include a plurality of additiveaccommodation parts 153-1 and 153-2, and the heater part 140 may includea plurality of control-type heaters 142-1 and 142-2. Here, a firstcontrol-type heater 142-1 may heat a first additive accommodation part153-1, and a second control-type heater 142-2 may heat a second additiveaccommodation part 153-2.

FIG. 6 illustrates a case in which the aerosol-generating article 150-2includes two additive accommodation parts 153-1 and 153-2 as an example,but the number of additive accommodation parts may be three or more.Also, FIG. 6 illustrates a case in which the plurality of additiveaccommodation parts 153-1 and 153-2 are disposed adjacent to each otheras an example, but the plurality of additive accommodation parts 153-1and 153-2 may be not disposed adjacent to each other. For example, thefirst additive accommodation part 153-1 may be disposed upstream of theaerosol-forming substrate part 151, and the second additiveaccommodation part 153-2 may be disposed downstream of theaerosol-forming substrate part 151.

Additives added to the additive accommodation parts 153-1 and 153-2 maybe the same or different from each other.

In a case in which the same additive is added, a degree of transfer ofthe additive can be more precisely controlled. For example, when thesame flavoring agent is added to the two additive accommodation parts153-1 and 153-2, the flavor intensity can be more precisely controlledby the two control-type heaters 142-1 and 142-2. For instance, a usermay operate (turn on) both of the two control-type heaters 142-1 and142-2 to taste a very strong flavor or may operate (turn on) only onecontrol-type heater 142-1 or 142-2 to taste a moderate flavor.

In a case in which different additives are added, a diverse smokingexperience can be provided to a user. For example, when differentflavoring agents are added to the two additive accommodation parts 153-1and 153-2 and both of the two control-type heaters 142-1 and 142-2 areoperated, two flavors may be combined and transferred to a user.Alternatively, when only one control-type heater 142-1 or 142-2 isoperated, only the flavoring agent added to the corresponding additiveaccommodation part 153-1 or 153-2 may be strongly transferred. Asanother example, when a flavoring agent and a moisturizer are added tothe two additive accommodation parts 153-1 and 153-2 and both of the twocontrol-type heaters 142-1 and 142-2 are operated, both flavor transferand vapor production may be enhanced.

The detailed structure of the aerosol-generating article 150-2 and theoperation principle of the heater part 140 according to the secondembodiment of the present disclosure have been described above withreference to FIG. 6 . According to the above description, controlprecision can be improved through the plurality of additiveaccommodation parts 153-1 and 153-2 and the plurality of control-typeheaters 142-1 and 142-2, and a diverse smoking experience can beprovided to the user.

Hereinafter, a detailed structure of an aerosol-generating article 150-3and an operation principle of the heater part 140 according to a thirdembodiment of the present disclosure will be described.

FIG. 7 is an exemplary view illustrating the detailed structure of theaerosol-generating article 150-3 and the operation principle of theheater part 140 according to the third embodiment of the presentdisclosure.

As illustrated in FIG. 7 , the aerosol-generating article 150-3according to the present embodiment may include the aerosol-formingsubstrate part 151, the additive accommodation part 153, and a pluralityof filter parts (or filter segments) 154 to 156.

A first filter part 154 may be disposed downstream of theaerosol-forming substrate part 151. The first filter part 154 mayprovide a movement path for an aerosol formed in the aerosol-formingsubstrate part 151 and may also perform a function of filtering orcooling the aerosol. As illustrated, the first filter part 154 may bemade of a filter structure having a hollow formed therein. For example,the first filter part 154 may be a tubular cellulose acetate filter or apaper tube, but the scope of the present disclosure is not limitedthereto.

Next, a second filter part 155 may perform a function of cooling anaerosol. The second filter part 155 may allow an aerosol at a suitabletemperature to be delivered to a user and thus improve the user'ssmoking satisfaction. The second filter part 155 may be made of astructure having a hollow or a cavity formed therein. For example, thesecond filter part 155 may be a paper tube or a tubular celluloseacetate filter but is not limited thereto.

Since the second filter part 155 performs the cooling function, thesecond filter part 155 may also be referred to as a “cooling part 155”or a “cooling segment 155” in some cases.

Next, a third filter part 156 may correspond to the filter part 152described above. Therefore, description thereof will be omitted.

The detailed structure of the aerosol-generating article 150-3 and theoperation principle of the heater part 140 according to the thirdembodiment of the present disclosure are described above with referenceto FIG. 7 . Hereinafter, a detailed structure of an aerosol-generatingarticle 150-4 and an operation principle of the heater part 140according to a fourth embodiment of the present disclosure will bedescribed.

FIG. 8 is an exemplary view illustrating the detailed structure of theaerosol-generating article 150-4 and the operation principle of theheater part 140 according to the fourth embodiment of the presentdisclosure.

As illustrated in FIG. 8 , the aerosol-generating article 150-4according to the present embodiment may include a first filter part 157,the aerosol-forming substrate part 151, the additive accommodation part153, a second filter part 158, and a third filter part 159.

The first filter part 157 may be disposed at an upstream end of theaerosol-generating article 150-4 and prevent the aerosol-formingsubstrate part 151 from falling to the outside. Also, the first filterpart 157 may prevent a liquefied aerosol from flowing from theaerosol-forming substrate part 151 into an aerosol generation device(e.g., 100-2). Alternatively, the first filter part 157 may perform afunction of disposing the aerosol-forming substrate part 151 at anappropriate position inside the aerosol generation device (e.g., 100-2)when the aerosol-generating article 150-4 is inserted into the aerosolgeneration device (e.g., 100-2).

Since the first filter part 157 is disposed at a front end of theaerosol-forming substrate part 151, the first filter part 157 may alsobe referred to as a “front end filter part 157,” a “front end filtersegment 157,” or a “front end plug 157” in some cases.

Next, the second filter part 158 and the third filter part 159 mayrespectively correspond to the filter parts 155 and 156 described above.Therefore, descriptions thereof will be omitted.

The detailed structure of the aerosol-generating article 150-4 and theoperation principle of the heater part 140 according to the fourthembodiment of the present disclosure have been described above withreference to FIG. 8 .

Meanwhile, in various embodiments described above, the flavoring agentadded to the aerosol-forming substrate part 151 or the additiveaccommodation part 153 may be a flavoring sheet produced in the form ofa sheet. Slowly releasing a flavoring fixed therein when heated, theflavoring sheet can ensure better flavor persistence than a flavoringliquid. A specific method of adding the flavoring sheet and a form inwhich the flavoring sheet is processed may vary.

In some embodiments, a flavoring sheet 10 (see FIG. 9 ) may be added ina cut form. For example, the flavoring sheet 10 in a cut form may bemixed with shredded tobacco and added to the aerosol-forming substratepart 151. Alternatively, the flavoring sheet 10 in a cut form may beadded to the additive accommodation part 153.

In some other embodiments, as illustrated in FIG. 9 , the flavoringsheet 10 may be added in a rolled or folded form. For example, theflavoring sheet 10 may be added to the aerosol-forming substrate part151 or the additive accommodation part 153 while having a form in whichit is rolled or folded in irregular patterns (see “10-1”), having avortex form (see “10-2”), having a concentric form (see “10-3”), orhaving a form in which it is folded several times (e.g., a form in whichit is folded to secure an airflow path in the longitudinal direction;see “10-4”). When the flavoring sheet 10 is added in the above-listedforms, an airflow path can be secured in the longitudinal direction, andthus a smooth airflow and appropriate resistance to draw can be ensured.Also, an area of contact between the flavoring sheet 10 and ahigh-temperature airflow is increased, and thus the amount oftransferred flavoring can be increased.

In still some other embodiments, the flavoring sheet 10 may be applied(e.g., attached) to a wrapper of an aerosol-generating article (e.g.,150). For example, the flavoring sheet 10 may be disposed on an innerside of a wrapper of the additive accommodation part 153 or a segmentadjacent thereto (e.g., the aerosol-forming substrate part 151 or thefilter parts 152, 154, and 156 to 159). In a case in which the wrapperincludes a metal foil, the flavoring sheet 10 may be disposed on aninner side of the metal foil. Alternatively, the flavoring sheet 10 mayconstitute at least a portion of the wrapper. For example, the flavoringsheet 10 itself may serve as (be used as) the wrapper, or a wrappingmaterial produced in a form in which the flavoring sheet 10 and wrappingpaper are integrated may be used as the wrapper.

In the previous embodiments, the flavoring sheet 10 may be processedthrough a predetermined process, and a specific form in which theflavoring sheet 10 is processed may vary.

For example, as illustrated in FIG. 10 , the flavoring sheet 10 may beprocessed to be pleated or folded in the longitudinal direction (thatis, the machine direction) of the aerosol-generating article (e.g.,150). For example, the flavoring sheet 10 may be pleated or foldedaccording to at least one of a crimping process, a pleating process, afolding process, and a gathering process. Specifically, the crimpingprocess is a process of forming wrinkles on a sheet surface through adifference between a pressure and a speed of a roller of a crimpingdevice, and the crimping process may be divided into a wet process and adry process. The wet process refers to a process in which a base paperis soaked in water, then softened and crimped, and undergoes a re-dryingprocess. The dry process uses two dryers with different temperatures.Since the pleating process, folding process, and gathering processshould already be familiar to those of ordinary skill in the art,further descriptions thereof will be omitted. According to the presentembodiment, a plurality of channels may be formed in the flavoring sheet10 in the longitudinal direction thereof by at least one of theprocesses described above, and a smooth airflow and appropriateresistance to draw can be ensured by the formed channels. Further, anarea of contact between the flavoring sheet 10 and a high-temperatureairflow is increased, and thus the amount of transferred flavoring canbe increased.

As another example, as illustrated in FIG. 11 , the flavoring sheet 10may be processed so that a plurality of holes 101 are formed therein.For example, the plurality of holes 101 may be formed in the flavoringsheet 10 by a punching process. Here, a diameter of the hole 101 may bein a range of about 0.05 mm to 5 mm and may be in a range of about 0.1mm to 3 mm, in a range of about 0.2 mm to 2.5 mm, in a range of about0.3 mm to 2.1 mm, or in a range of about 0.4 mm to 1.8 mm. Within suchnumerical ranges, a smooth airflow and appropriate resistance to drawcan be ensured. Further, an area of contact between the flavoring sheet10 and the high-temperature airflow may be increased, and thus theamount of transferred flavoring can also be increased.

Meanwhile, in some embodiments, the flavoring sheet 10 may be added to afilter part (e.g., 155 or 158) performing the cooling function or may beadded to a hollow-type filter part (e.g., 154). For example, theflavoring sheet 10 may be added into a filter part (e.g., 154, 155, or158) or attached to an inner wall thereof. In this case, flavorexpression and cooling performance of an aerosol-generating article(e.g., 150-3) can be improved. In more detail, since the flavoring sheet10 absorbs high-temperature heat and releases a flavoring when incontact with a high-temperature aerosol, both the flavor expression andcooling performance can be improved.

The flavoring sheet 10 descried above may be produced through a step inwhich a sheet composition is produced in a liquid phase (e.g., a slurryform) and a step in which the produced sheet composition is dried. Here,the liquid phase may not only include a liquid form but also include aform in which a liquid and a solid are mixed (e.g., a slurry form). Forexample, the flavoring sheet 10 may be produced by casting a sheetcomposition on a predetermined substrate and drying the sheetcomposition. However, the flavoring sheet 10 is not limited thereto, anda specific method of producing the flavoring sheet 10 may be changed.

A specific composition of the sheet composition may be designed invarious ways, but in some embodiments, the sheet composition may beformed by mixing a solvent such as distilled water or ethanol, apolysaccharide material (or a hydrocolloid material), and a flavoring.The flavoring sheet 10 produced from the sheet composition may hold alarge amount of flavor and have excellent flavor retention and thus cansignificantly enhance flavor expression and flavor persistence of theaerosol-generating article (e.g., 150). Hereinafter, each materialconstituting the sheet composition will be described.

The solvent such as distilled water or ethanol may be a component forcontrolling the viscosity of the slurry-type sheet composition.

Next, the polysaccharide material may be a material for covering andfixing the flavoring and may be a sheet-forming agent for forming asheet. Examples of the polysaccharide material may includecellulose-based materials such as hydroxypropyl methylcellulose (HPMC),methyl cellulose (MC), carboxymethyl cellulose (CMC), and agar. Suchcellulose-based materials have a property of easily absorbing heatthrough a phase change upon contact with a high-temperature airflow, andthus the flavoring sheet 10 may be utilized as a cooling material aswell as a flavor expressing material.

In some embodiments, the sheet composition may include modifiedcellulose among various polysaccharide materials. Here, the term“modified cellulose” may refer to cellulose in which a specificfunctional group is substituted in a molecular structure. Examples ofmodified cellulose may include HPMC, MC, CMC, and ethyl cellulose (EC),but modified cellulose is not limited thereto. For example, HPMC mayhave a grade in a range of about 4 to 40000 according to a proportionand molecular weight in which a hydroxypropyl group and a methyl group(or methoxy group) are substituted. The viscosity of modified cellulosemay be determined according to the grade. More specifically,physicochemical characteristics of HPMC relate to a proportion of themethoxy group and a proportion and molecular weight of the hydroxypropylgroup, and according to the United States Pharmacopeial Convention(USP), types of HPMC may be classified into HPMC1828, HPMC2208,HPMC2906, HPMC2910, and the like according to proportions of the methoxygroup and hydroxypropyl group. Here, the first two numbers may refer toa proportion of the methoxy group, and the last two numbers may refer toa proportion of the hydroxypropyl group. As a result of continuousexperiments by the inventors of the present disclosure, the flavoringsheet 10 produced from a sheet composition including modified cellulosewas confirmed as having excellent physical properties and holding alarge amount of flavor.

Next, examples of the flavoring may include menthol, nicotine, nicotinesalt, a leaf tobacco extract, a leaf tobacco extract containingnicotine, a natural vegetable flavoring (e.g., cinnamon, sage, herb,chamomile, kudzu, amacha, clove, lavender, cardamom, clove, nutmeg,bergamot, geranium, honey essence, rose oil, lemon, orange, cinnamon,caraway, jasmine, ginger, coriander, vanilla extract, spearmint,peppermint, cassia, coffee, celery, cascarilla, sandalwood, cocoa,ylang-ylang, fennel, anise, licorice, St. John's bread, plum extract,peach extract, etc.), sugars (e.g., glucose, fructose, isomerized sugar,caramel, etc.), cocoa (e.g., powder, extract, etc.), esters (e.g.,isoamyl acetate, linalyl acetate, isoamyl propionate, linalyl butyrate,etc.), ketones (e.g., menthone, ionone, damascenone, ethyl maltol,etc.), alcohols (e.g., geraniol, linalool, anetol, eugenol, etc.),aldehydes (e.g., vanillin, benzaldehyde, anisaldehyde, etc.), lactones,(e.g., γ-undecalactone, γ-nonalactone, etc.), an animal flavoring (e.g.,musk, ambergris, civet, castoreum, etc.), and hydrocarbons (e.g.,limonene, pinene, etc.). The flavoring may be used in a solid state ormay be used by being dissolved or dispersed in an appropriate solvent,e.g., propylene glycol, ethyl alcohol, benzyl alcohol, or triethylcitrate. Also, a flavoring that is easily dispersed in a solvent byaddition of an emulsifier, e.g., a hydrophobic flavoring or anoil-soluble flavoring, may be used. These flavorings may be used aloneor used as a mixture. However, the scope of the present disclosure isnot limited by the examples described above.

In some embodiments, a flavoring whose melting point is about 80° C. orlower may be used. In this case, when the flavoring sheet 10 comes intocontact with an airflow having a temperature of 80° C. or higher, theflavoring may undergo a phase change and further absorb the heat. Thus,the cooling performance of the flavoring sheet 10 can be furtherimproved. Considering the fact that a heated aerosol generally has atemperature of 80° C. or higher, the use of the above flavorings caneffectively improve cooling performance of most aerosol-generatingarticles (e.g., 150). Further, since the phase-changed flavoring iseasily volatilized, the flavor expression of the aerosol-generatingarticle (e.g., 150) can also be improved. An example of the flavoringwhose melting point is about 80° C. or lower may include menthol, butthe flavoring is not limited thereto.

Meanwhile, in some embodiments, the sheet composition may furtherinclude low methoxyl pectin (LM-pectin). LM-pectin is a low ester-pectinor low methoxyl pectin in which relatively little esterification isperformed. Specifically, LM pectin may be pectin that contains acarboxyl group by less than about 50% in a molecular structure. Unlikecarrageenan, LM-pectin does not gelate when cooled, and thus LM-pectinmay lower the viscosity of the slurry-type sheet composition (e.g., toabout 600 cp to 800 cp). Further, since the slurry-type sheetcomposition can be produced without an emulsifier, a safety problem dueto emulsifiers may not occur.

LM-pectin may contain a carboxyl group by less than about 50%, less thanabout 40%, less than about 30%, less than about 20%, or less than about10% in a molecular structure. The lower the content of carboxyl group inthe molecular structure of LM-pectin, the lower the viscosity of aslurry including LM-pectin.

Also, in some embodiments, the sheet composition may further include abulking agent. The bulking agent may be a material that increases thetotal mass of components other than distilled water (that is, dry mass)to increase the volume of the flavoring sheet 10 being produced but doesnot affect the original function of the flavoring sheet 10.Specifically, the bulking agent may have characteristics of increasingthe volume of the flavoring sheet 10 but not adversely affecting theflavor retaining function of the flavoring sheet 10 while notsubstantially increasing the viscosity of the slurry. Preferably, thebulking agent may be starch, modified starch, or starch hydrolyzate butis not limited thereto.

Modified starch refers to starch acetate, oxidized starch, hydroxypropyldi starch phosphate, hydroxypropyl starch, distarch phosphate,monostarch phosphate, phosphorylated distarch phosphate, or the like.

Starch hydrolyzate refers to a material obtained by a process thatincludes a process of hydrolyzing starch. For example, starchhydrolyzate may include a material obtained by directly hydrolyzingstarch (that is, dextrin) or a material obtained by heating andhydrolyzing starch (that is, indigestible dextrin). For example, thebulking agent may be dextrin, more specifically, cyclodextrin.

Generally, starch hydrolyzate may be starch hydrolyzate having adextrose equivalent (DE) value in a range of about 2 to about 40,preferably, starch hydrolyzate having a DE value in a range of about 2to about 20. For example, as the starch hydrolyzate having a DE value ina range of about 2 to about 20, Pinedex #100 (Matsutani ChemicalIndustry Co. Ltd), Pinefiber (Matsutani Chemical Industry Co. Ltd),TK-16 (Matsutani Chemical Industry Co. Ltd), or the like may beutilized.

Here, “DE” is an abbreviation of “dextrose equivalent,” and the DE valueindicates a degree of hydrolysis of starch, that is, a saccharificationrate of starch. In the present disclosure, the DE value may be a valuemeasured by the Willstatter-Schudel method. Characteristics ofhydrolyzed starch (starch hydrolyzate), for example, characteristicssuch as a molecular weight of starch hydrolyzate and arrangement ofsugar molecules constituting starch hydrolyzate, may not be constant foreach molecule of starch hydrolyzate and may be present with a certaindistribution or variation. Due to the distribution or variation of thecharacteristics of starch hydrolyzate or a difference in cut sections,each molecule of starch hydrolyzate may exhibit different physicalproperties (e.g., DE value). In this way, starch hydrolyzate is a set ofmolecules exhibiting different physical properties, but a measurementresult (that is, DE value) by the Willstatter-Schudel method isconsidered a representative value indicating the degree of hydrolysis ofstarch.

Preferably, starch hydrolyzate may be selected from the group consistingof dextrin having a DE value in a range of about 2 to about 5,indigestible dextrin having a DE value in a range of about 10 to about15, and a mixture thereof. For example, as the dextrin having a DE valuein a range of about 2 to about 5, Pinedex #100 (Matsutani ChemicalIndustry Co. Ltd) may be utilized. As the indigestible dextrin having aDE value in a range of about 10 to about 15, Pinefiber (MatsutaniChemical Industry Co. Ltd) may be utilized.

Also, in some embodiments, the sheet composition may further include aplasticizer. The plasticizer may add appropriate flexibility to theflavoring sheet 10, and thus improve the physical property of the sheet.For example, the plasticizer may include at least one of glycerin andpropylene glycol but is not limited thereto.

Also, in some embodiments, the sheet composition may further include anemulsifier. The emulsifier may allow a highly fat-soluble flavoring anda water-soluble polysaccharide material to be mixed well and increasethe amount of flavor held in the flavoring sheet 10. An example of theemulsifier may include lecithin, but the emulsifier is not limitedthereto.

Meanwhile, the flavoring sheet 10 produced from the above-describedsheet composition may have various content ratios (composition ratios).

In some embodiments, the flavoring sheet 10 may include, with respect toa total of 100 parts by weight, about 20 to 60 parts by weight of thepolysaccharide material and about 10 to 50 parts by weight of theflavoring. Of course, the flavoring sheet 10 may further include anappropriate amount of moisture. The flavoring sheet 10 configured inthis way was confirmed as significantly improving the flavor expression,flavor persistence and cooling performance of the aerosol-generatingarticle (e.g., 150).

In some embodiments, the flavoring sheet 10 may include, with respect toa total of 100 parts by weight, about 2 to about 15 parts by weight ofmoisture, about 25 to about 90 parts by weight of modified cellulose,and about 0.1 to about 60 parts by weight of flavoring.

Also, in some embodiments, the flavoring sheet 10 may include, withrespect to a total of 100 parts by weight, about 2 to about 15 parts byweight of moisture, about 1 to about 60 parts by weight ofpolysaccharide material, about 1 to about 60 parts by weight ofLM-pectin, and about 0.1 to about 60 parts by weight of flavoring.

In some embodiments, with respect to a total of 100 parts by weight ofthe flavoring sheet 10, the plasticizer may be included by about 0.1 toabout 15 parts by weight and may be included by about 1 to 10 parts byweight. For example, the flavoring sheet 10 may include, with respect toa total of 100 parts by weight, about 20 to 60 parts by weight ofpolysaccharide material, about 10 to 50 parts by weight of flavoring,and about 1 to 10 parts by weight of plasticizer. Within such numericalranges, a sheet having appropriate flexibility (physical property) maybe formed, and since processing (e.g., crimping, rolling, folding, etc.)of the flavoring sheet 10 is easy, workability may be improved. Forexample, in a case in which the amount of added plasticizer is toosmall, flexibility of the sheet may be decreased and thus the sheet maybe easily damaged during processes. On the other hand, in a case inwhich the amount of added plasticizer is too large, the sheet may not beformed well.

The flavoring sheet 10 according to some embodiments of the presentdisclosure has been described above.

The embodiments of the present disclosure have been described above withreference to the accompanying drawings, but those of ordinary skill inthe art to which the present disclosure pertains should understand thatthe present disclosure may be embodied in other specific forms withoutchanging the technical spirit or essential features thereof. Therefore,the embodiments described above should be understood as beingillustrative, instead of limiting, in all aspects. The scope of thepresent disclosure should be interpreted according to the claims below,and any technical spirit within the scope equivalent to the claimsshould be interpreted as falling within the scope of the technicalspirit defined by the present disclosure.

What is claimed is:
 1. An aerosol generation device comprising: ahousing which forms an accommodation space for accommodating anaerosol-generating article; and a heater part configured to heat theaerosol-generating article accommodated in the accommodation space togenerate an aerosol, wherein the aerosol-generating article includes anaerosol-forming substrate part, and an additive accommodation part inwhich an additive is accommodated, and the heater part includes a heaterconfigured to heat the aerosol-forming substrate part and a usercontrol-type heater configured to heat the additive accommodation partwhile being controlled based on a user input.
 2. The aerosol generationdevice of claim 1, wherein the user input is received through a buttonarranged on an outer surface of the housing.
 3. The aerosol generationdevice of claim 1, wherein the additive is a flavoring agent.
 4. Theaerosol generation device of claim 3, wherein the flavoring agent is aflavoring sheet produced in a form of a sheet.
 5. The aerosol generationdevice of claim 3, wherein: the flavoring agent is a flavoring sheetproduced in a form of a sheet; and the flavoring sheet is added in a cutform to the additive accommodation part.
 6. The aerosol generationdevice of claim 3, wherein: the flavoring agent is a flavoring sheetproduced in a form of a sheet; and the flavoring sheet is added in arolled or folded form to the additive accommodation part.
 7. The aerosolgeneration device of claim 1, wherein the additive is a moisturizer. 8.The aerosol generation device of claim 1, wherein: the additiveaccommodation part includes a first accommodation part and a secondaccommodation part; and the user control-type heater includes a firstheater configured to heat the first accommodation part and a secondheater configured to heat the second accommodation part.
 9. The aerosolgeneration device of claim 1, wherein a heating strength of the usercontrol-type heater is controlled based on the user input.
 10. Theaerosol generation device of claim 1, wherein: the user control-typeheater is an external heating type; the additive is a flavoring agent;and the flavoring agent is also added to a wrapper of the additiveaccommodation part.
 11. The aerosol generation device of claim 1,wherein: the user control-type heater is an external heating type; theadditive is a flavoring agent; and the flavoring agent is also added toa wrapper of a segment adjacent to the additive accommodation part.